.container{
    text-align: center;
}
/*.container nav a{*/
/*    color:skyblue;*/
/*    margin:10px;*/
/*}*/
/*.container nav a.active{*/
/*    color:red;*/
/*}*/


.container nav a{
    margin:10px;
}
.a-link{
    color:skyblue;
}
.a-active{
    color:red;
}